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420875

Sigma-Aldrich

LUDOX® AM colloidal silica

30 wt. % suspension in H2O

Synonym(s):

Silica preparation

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About This Item

Linear Formula:
SiO2
CAS Number:
7631-86-9
Molecular Weight:
60.08
MDL number:
MFCD00011232
UNSPSC Code:
12352309
PubChem Substance ID:
24866359
NACRES:
NA.22

description

colloidal

Quality Level

200

form

liquid

concentration

30 wt. % suspension in H2O

surface area

198-250 m2/g

pH

8.6-9.3

density

1.21 g/mL at 25 °C

SMILES string

O=[Si]=O

InChI

1S/O2Si/c1-3-2

InChI key

VYPSYNLAJGMNEJ-UHFFFAOYSA-N

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General description

contains sodium stabilizing counterion.

LUDOX® AM colloidal silica consists of more condensed silicon structure and it is used in the preparation of polyaniline dispersions.

Application

LUDOX® AM colloidal silica can be used as a source of silica for the synthesis of:
  • NaX zeolites by hydrothermal method.
  • Chrysotile-type Mg3Si2O5·(OH)4 nanotubes (MgSi-NTs).

It can also be used as a binder for ceramic slurries.

Legal Information

LUDOX is a registered trademark of W.R. Grace & Co.-Conn.

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H317,H412

Hazard Classifications

Aquatic Chronic 3 - Skin Sens. 1

Storage Class Code

12 - Non Combustible Liquids

WGK

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

ISHL Indicated Name

Substances Subject to be Indicated Names

ISHL Notified Names

Substances Subject to be Notified Names

JAN Code

420875-BULK:
420875-4L:4548173940731
420875-VAR:
420875-18L:4548173940717
420875-1L:4548173940724

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Certificates of Analysis (COA)

Lot/Batch Number
STBL2267
STBL0033
STBJ6796
STBJ0495
STBH9412

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Investigation of the Use of Various Silica Source on NaX Zeolite Properties
Eskandari A, et al.
Journal of Chemical and Petroleum Engineering, 50(2), 1-7 (2017)
Polyaniline dispersions. 6. Stabilization by colloidal silica particles
Stejskal
Macromolecules, 29, 6814-6819 (1996)
Synthesis and catalytic activity of chrysotile-type magnesium silicate nanotubes using various silicate sources.
Lopez-Salinas E, et al.
Microporous and Mesoporous Materials : The Official Journal of the International Zeolite Association, 274(2), 176-182 (2019)
Particle morphology and chemical microstructure of colloidal silica spheres made from alkoxysilanes
Van Blaaderen
Journal of Non-Crystalline Solids, 149, 161-178 (1992)
Influence of the Al2O3 Solid Phase on the Kinetics of Binding Ceramic Moulds.
Kolczyk J, et al.
Archives of Foundry Engineering, 17(4), 91-96 (2017)
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